12425205436 has 24 divisors (see below), whose sum is σ = 25096460256. Its totient is φ = 5272363200.

The previous prime is 12425205433. The next prime is 12425205437. The reversal of 12425205436 is 63450252421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12425205433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2193991 + ... + 2199646.

It is an arithmetic number, because the mean of its divisors is an integer number (1045685844).

Almost surely, 2^12425205436 is an apocalyptic number.

It is an amenable number.

12425205436 is an abundant number, since it is smaller than the sum of its proper divisors (12671254820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12425205436 is a wasteful number, since it uses less digits than its factorization.

12425205436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393749 (or 4393747 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 12425205436 its reverse (63450252421), we get a palindrome (75875457857).

The spelling of 12425205436 in words is "twelve billion, four hundred twenty-five million, two hundred five thousand, four hundred thirty-six".